Cocktail shaker



J. M. RIEGEL.

Nov. 23, 1937.

COCKTAIL SHAKER Filed Feb. 12, 1956 INVENTOR ege ATTORNEY nPatented Nov. 23, 1937 UNITED STATES PATENT orsi This invention relates to cocktail shakers, or similar containers for ice and fluid beverages or the like adapted for agitation to properly mix and cool the liquid contents thereof.

In most articles of this class, fragments of ice are brought into actual contact and mixed with the fluid, thereby not only diluting the liquid with the melted ice, but also contaminating it with any impurities that may possibly be pres- 10 ent therein. It has been my main purpose, in

conceiving this invention, to overcome these disadvantages by entirely separating the ice or other refrigerating medium from the iiuid and keeping it completely out of contact therewith, and at 15 the same time in close enough proximity for effective cooling thereof. This I accomplish by housing the ice in a separate compartment positioned within the main liquid container, all in a manner and in accordance with certain structures hereinafter more fully described. This arrangement, whereln the refrigerant is kept separate and apart from the beverage or other liquid within the vessel, enables a device of this class to employ as a cooling medium dry ice or other 25 quick-acting refrigerant, which could obviously not be used where the refrigerant and fluid are in actual contact,thereby accomplishing another object of `my invention.

Another object of this invention is to provide an-eifective seal for the ice so as to prevent leakage into the fluid contents of theV container.

Other objects are to reduce the rattling noise ofthe ice fragments during agitation, provide efcient refrigeration for the fluid contents, make 35 possible the elimination of an ice strainer, and

enable all of the aforesaid objects and accomplishments to be attained by means of a relatively simple and easily manipulated device.

Other objects, features and advantages will ap- 40 pear from the drawing and the description hereinafter given.

Referring to the drawing, Figure l is a vertical section showing one form of my invention, the refrigerant container being 45 in threaded engagement with the tubular portion of the cap.

Figure 2 is a fragmentary vertical section of another form of my invention, showing a bayoo net attachment of the refrigerant container with a portion of the cap, in combination with gasket sealing means.

Figure 3 is a fragmentary vertical section of still another form of this invention showing an 55 independent refrigerant container provided with a sealing cap and unattached to any portion of the main vessel, and

Figure 4 is a fragmentary vertical section of still another form of my invention in which an independent refrigerant container is held operatively in place between the cap and base of the vessel.

In the drawing, the vessel 5, which is the main fluid container, has a closure cap 6 preferably slidably insertable within the neck of the vessel to effect a friction seal. The said cap contains, either integral therewith or suitably soldered thereto, the downwardly extending tube l the lower terminal 8 thereof being entirely open. In threaded engagement with said tube is the ice or refrigerant container 9,-the latter being shown, in the preferred form of my invention, as of cylindrical configuration and axially disposed with respect to the vessel 5. It should be noted that in this form of the structure, the bottom of the container 9 is preferably spaced from the base I of the vessel.

In assemblying this device for operative use, ice cubes or fragments of dry ice or any other suitable refrigerant is placed within the detached container 9,--preferab1y filling such container as entirely as possible. Then said container 9 is screwed into place over the tube 1, and the assembly of cap and the filled container 9 is in-A serted into the vessel within the space Il of which the fluid to be cooled and agitated is contained. In this condition the device is ready for operative manipulation; and it will be noted that inasmuch as the container 9 is completely surrounded by the fluid contents of the vessel during agitation, the fluid will be cooled through contact with the walls of the said container. Since the liquid within the vessel completely surrounds the tube as aforesaid, it will serve as an insulating medium therefor to prolong the life of the refrigerant,-an arrangement which obviously has an advantage over other structures where the ice is contained within the space Il and brought into contact with the outer walls Andfurther note should be taken of the fact that the refrigerant within the container 9, being at all times within a, sealed container not exposed to the atmosphere even whenktheY cap is removed, will not be subjected to accelerated meltingand hence will have longer eiective life.

In addition to the advantages and features above referred to, it is apparent that one of the outstanding advantages of this construction is the provision for keeping the refrigerant separate and apart from the uld contents of the vessel, so as to prevent dilution of the liquid with melted ice, if that is the refrigerant employed, or contamination with any impurities that may be present therein. 'I'his not only makes it possible for the uid contents to constantly remain in the concentrated form in which it is vintended to be used, but it serves the additional function of keeping the fluid pure and uncontaminated, which is a decided advantage particularly where the iiuid is a beverage. It should be further noted that inasmuch as there is no ice within the space I I of the. vessel, there is no need-for a strainer at the outlet I2 of the spout I3, this being a factor in reducing the cost of this article. In Figure 2 is shown a modification of m as the device of Figure 1, except that a bayonet joint I4 is employed instead of an ordinary screw thread connection,--tliereby effecting a quicker closure. Furthermore, in this form of my invention, an annular gasket l5 is employed between the top of the refrigerant container I6 and the annular extension or ridge II of the tube I8. This insures against leakage of -any of the melted refrigerant into the vessel.

In the forms of Figures 1 and 2 the caps can contain in the lateral walls thereof the recessed portions 29 and 30, respectively, so dimensioned as to be in engagement with the walls of the said tubes 'I and I8 respectively, thereby holding them against lateral displacement and adding rigidity and stability to the structure.

In Figure 3 is still another modification of my invention in which the container I9 is unattached to any portion of the vessel or cap, and is provided with an independent closure 2t having a finger grip 2i thereon. The upper peripheral edge of the closure 2@ is in close proximity to the lateral wall 22 of the cap t3, sothat upon a shaking or agitation of the device, there can only be an inappreciable amount of rattling. It is also within the contemplation ofjrny invention to so dimensionally design the height of container I9 and closure 2t as to make said peripheral Vedge actually in contact with the said 'cap 23,'there'by eliminating any and all vibration whatsoever.

In the form of my invention illustrated inv Figure 3, it will be noted that the container I9 is absolutely 'an independent part of the vessel proper, and yet coacts therewith to serve the functions aforesaid.- lShould it then ever be deaired to utilize the vessel without the container imthat can readily be done by removlngsame independent part separate from and unattached to any portion of the vessel 25 or cap 2B. The height of the container 24 is exactly equal to the distance between the base 21 of the vessel and the top of the cap 26; and the outer diameter y of the top of container 24 may, if preferred, be made equal to the inside diameter of the annular recessed portion 28 ofthe cap, thereby providing ,an additional support for the container intermediate the ends thereof.

With the construction of Figure 4, it is apparent that there can be no'rattling or movement of the refrigerant container 24. Furthermore, the top of the cap 2B serves as a closure for the top open end of container 24, 'thereby acting as a seal to prevent any melted liquid from leaking into the vessel. Inasmuch as the container 24 is ,.unattached to any portion of the vessel or cap, vention embodying essentially the same features as above stated, it can be removed, if desired, to permit the article to serve its function in the ordinary way.

' It is of course understood that the various embodiments above described and shown in the drawing are illustrative of my inventionand not employed by way of limitation, inasmuch as numerous changes and modifications-may' be made within the scope of the appended claims without departing from the spirit of this invention.

What I claim is:

1. A cocktail shaker or the like comprising a main vessel, a closure cap therefor having an annular recessed portion in the lateral wall thereof vand a downwardly extending` tube therein sealed at the top and open at the bottom, the lateral wall of the tube having an intermediate portion thereof in circumferential engagement with said recessed portion, and a hollow refrigerant container with an open-ended top portion in detachable engagement with said tube.

2. A cocktail shaker or the like comprising a main vessel, a closure cap therefor having an annular recessed portion in the lateral wall thereof and containing a downwardly extending tube therein sealed 'at the top and open at the bottom, the lateral wall of the tube having an intermediate portion thereof in circumferential engagement with said recessed portion, a hollow refrigerant container with an open-ended top portion, and bayonet locking means on said tube and container for detachably engaging the container and 

